Anchor for resilient window strips



Nov. 27, 1956 A. czYs 2,771,642

ANCHOR FOR RESILIENT wmnow STRIPS Filed July. 28, 1954 2 Sheets-Sheet 1 ALBERT CzYs Nov. 27, 1956 A. czYs 2,771,642

ANCHOR FOR RESILIENT WINDOW STRIPS Filed July 28, 1954 2 Sheets-Sheet 2 lbn ALBEQT CZYS United States Patent() "1c 2,771,642 ANCHOR FOR RESHIIENT WINDOW STRIPS Albert Czys, Cicero, IlL, assignor to Dorbin Metal Strip Manufacturing Company, Inc., Cicero, 111., a corporation of Illinois Application July 28, 1954, Serial No. 446,383 1 Claim. (Cl. 20-12) This invention relates to an improved anchor for resilient window strips.

Various attempts have been made to anchor window strips to the window frames resiliently; but difliculties were encountered due to loosening of required firm anchor connections as a result of the resilient window strip action. The new anchor is improved in this respect, while providing a unit of utmost simplicity and economy.

The improvement has been achieved by a novel guide, support and connector unit, consisting of two very simple metal parts and cooperating with standard parts such as screws and coil springs.

The details will be understood from a study of the following disclosure of a preferred embodiment.

In the drawing:

' Figure 1 is a front view of a window equipped in accordance with this invention.

Figure 2 is a fragmentary section through the window along lines 22 in Figure 1.

Figure 3 is a slightly enlarged, fragmentary section through the window along lines 33 in Figure l, with the window sashes removed.

Figure 4 is a section through the detail of Figure 3 along lines 4-4 therein.

Figure 5 is an exploded fragmentary front view of apparatus shown in Figure 4.

Figure 6 is an enlarged section through details shown in Figures 4 and 5.

Figure 7 is a section through Figure 6 along lines 7-7 in that figure.

Referring first to Figures 1 and 2, the invention is shown applied to a well-known type of double-hung or vertically slidable window, having the usual upper back window sash 10 and lower front window sash 11, both slidable between a pair of upright frame members 12, 13 laterally spaced from one another.

As suggested in Figure 3, conventional window stop and seal stripping 14 may be provided along the horizontal frame members 15, 16; also along one of the upright members 13.

The other vertical frame member 12 is shown as being provided with a pair of vertical window strip channels 17, 18 located in front of one another and resiliently pressed in a horizontal, lateral direction against the corresponding sashes 10, 11. For this purpose one channel 17 is secured to the frame member 12 by upper and lower anchoring devices 19, 20. Identical anchoring devices 21, 22 are used for the other channel 18.

As shown in Figures 3, 4 and 5 each anchoring device 21, etc. comprises a rigid support and guide member 23 formed by a fiat rectangular metal plate firmly attached to the working surface-that is, the surface facing the window sashof the corresponding vertical frame member 12, for the resilient, vibration-proof anchoring of the corresponding resilient strip 18. A guided member, pin or screw 24 extends loosely through a central, oversized punch hole 25 in this plate 23. This pin or screw is loosely inserted in a suitable hole 26 in the window strip Patented Nov. 27, 1 956 18 with the head 27 of the screw facing the window sash 10 and the shank of the screw extending away therefrom and through the holes 26, 25. Beyond the latter hole, a flat circular nut 28 is threaded on the screw 24. This nut is safely and simply prevented from rotation, in spite of vibration of the screw, by antirotation guide means shown as a pair of thin but rigid fingers 29, 30 partly punched out from the plate into positions at right angles thereto. These fingers are left attached to the plate 23 adjacent the hole 25. Two narrow, elongated slots 31, 32 are formed in the plate by said punching out, and these slots extend along the long axis of the plate and symmetrically to its short axis. In addition to the fingers 29, 30 their corresponding, eccentric, slightly oversized holes 33, 34 in the nut 28 (see Figure 7) are also symmetrically arranged above and below the screw 24 and screw holes 25, 35 of the guide plate and nut.

The entire mechanism formed by the nut 28 and associated parts 29, 30, etc. of the guide members 23, 24 is housed in a conveniently oversized drill hole 36, which is laterally sunk into the working surface of the window frame 12. The length of the plate 23 is somewhat greater than the diameter of this large drill hole, and the outer ends of the slots 31, 32 and/or a pair ofadditional punch holes 37, 38 at the very ends of the plate are located outside the periphery of the drill hole when the guide hole 35 is centered with said drill hole. It is not necessary to mortise or countersink the plate 23 into said frame surface, there being no part in sliding relation therewith, Nor is it necessary to attach the plate 23 to the frame 12 with the axis of the plate strictly vertical; it is possible instead to tilt it suitably as indicated at 39 in Figure 7, and thereby to avoid superimposition of the holes 37, 38 on any knots or cracks that may occur in the wood of the frame. Thus it becomes possible to attach the guide mechanism safely with very small, easily attachable screws or nails 40, 41 extending through the holes 37, 38 respectively.

A coil spring 42 having suitably squared and ground ends 43, 44 is interposed between the fixed plate 23 and the Window strip 18 and desirably held by the screw or pin 24 which for this purpose extends loosely through the spring. Thus the strip 18 is mounted resiliently, with pressure against the sash 10. By this pressure. the head 27 of the guide screw or pin 24 is prevented from moving toward the sash. It is likewise prevented from either moving away from the sash or rotating in the holes 25, 26, 35, by frictional engagement between the underside of the head 27, and the contacting surface of the hole 26. For this purpose the latter hole is desirably punched into the strip 18 in a countersunk form as known to the art, while all surfaces of the guide plate 23 can be substantially flat.

In order to facilitate the storage and ensuing application of the guide mechanisms 23, 24, 28 and also to provide desirably safe, uniform limit stops for the resilient flexing of the strip 18 it is preferred to bend the ends 45 of each guide finger 29, 30 out of its normal, straight alignment with the body of the corresponding finger; as shown, outwards.

Thus the application of the new anchors becomes very simple. Locations are first determined for the drill holes 36, at vertical distances from the top or bottom of the window frame. These distances must correspond with the locations of preformed holes 26 in the strip 18, but such correspondence can be very approximate, such as plus or minus one-eighth inch or more. A plate 23, with nut 28 on its fingers 29, 30, is then suitably oriented over each hole 36, so that safe nailing or screwing on at 37, 38 can be performed. Only approximate concentricity of holes 36, 35 is required; it

can be maintained easily by observing the periphery of the hole 36- through the slots 31, 32. The plate 23 is then nailed or screwed to the frame in the position so determined. Next, the window strip 18 is held vertically and brought to the frame, with a screw 24 inserted therein and a spring 42 surrounding the shank of the screw. The screw is then threaded into the nut 23. Finally these latter operations are repeated at the other screw and anchor of the window strip.

In normal operation the window strip 18 is resiliently pressed to the sash 10 and the latter to 'the opposite frame member 13, by the springs 42, thereby insuring tight sealing of the sides of the window. Thus the nut 28 is normally located adjacent to but not quite at the outer end of the recess 36; the proper distance being deterrnined in the original installation of the screws 24. The window sash 10 can be raised and lowered freely, between the fixed and resilient strips 14, 18.

When it becomes desirable to remove a window sash 10 from the frame, for washing or the like, the sash is pressed laterally against the strip 1 .8, compressing the springs 42, until the stop element of the fixed strip 14 releases the groove on the corresponding side of the sash. The sash is then tilted forward a slight distance on the side of the fixed strip 14, whereon it can be removed readily. The resilient strip 18 and nuts 28 are then automatically displaced all the way toward their outer positions. They can be brought back to their normal positions by simply re-inserting the window.

During both types of operations, frequent raising or lowering of the window and occasional removal and re-insertion of the window, substantial vibration of the strip 13 is unavoidable. However, no ill eifects are caused thereby, as to the anchor arrangement, due to the looseness of the guide mechanism. Thus it becomes possible to maintain maximum stability of the anchor devices 23, 24, with minimum size, bulk and cost of attachment means 40, 41.

The basic anchor unit according to this invention consists in the combination of the plate 23 and nut 28.

Both parts of this unit are produced most simply by punching and similar operations. Such operations are particularly simplified by the symmetrical design of the parts. All other parts employed, such as screws 24, springs 42, strips 14, 18, etc. can be entirely conventional. v

Various modifications are possible. I claim:

An anchor for fastening a resilient window strip to a laterally facing surface of a window frame, comprising a flat, elongated, substantially rectangularmeta'l plate with apair of thin fingers partly punched out therefrom into positions at right angle thereto but left attached thereto, said plate being slightly less wide than said surface, being substantially longer than wide and having a pair of holes formed therein, one in each terminal part thereof, whereby the plate can be rigidly secured to said surface; a nut slidably held by said pair of fingers; a screw threaded into the nut from :beyond the plate and a compression spring interposed between the plate and the head of the screw, whereby a window strip can be resiliently spaced from the plate and thereby from the window frame.

References Cited in the file of this patent UNITED STATES PATENTS 2,087,113 Owen July 1-3, 1937 2,303,148 Tinnerrnan Nov. 24, 1 942 2,330,372 Mittendorf Sept. 23, 11943 2,394,979 Buckner Feb. 19, 1 946 2,443,752 Tinnerman June 22, 1948 2,631,336 WeiSSman Mai. 17, 1953 

